Apparatus for the incorporation of a liquid with a gas



P. s. wcARD 2,23,061

APPARATUS FOR THE INCORPORATION OF A LIQUID WITH A GAS Filed April '7,1933 INVENTOR.

PIERRE GEORGES VICARD.

(9 ATTORNEY @444.

Patented Dec. 3, 1935 UNITED STATES PATENT OFFICE Pierre Georges Vicard,Lyon, France Application April 7, 1933, Serial No. 664,997 In FranceApril 25, 1932 2 Claims.

This invention relates to an apparatus for the rapid and completeincorporation of a liquid with a gas, such apparatus providing means forelfecting intimate mixtures, emulsions or combinations in the chemical'sense of the word of a liquid and a gas such as may be required forvarious purposes in industry for example for the conditioning of theatmosphere in factories, workshops,

public halls or for the condensation of dust etc.

For the obtention of the result desired a jet of liquid at a lowpressure is directed against or on blades of a particular shape as willhereinafter be described, the said blades being arranged on theperiphery of a drum or wheel which is caused to rotate at high speed inthe gaseous medium (air for example) with which the said liquid is to beincorporated.

The efficaciousness of the improved apparatus is due to the fact thatthe feed of the jet is effected at a low pressure against blades whichhave both cutting and shock producing properties due to the particularsectional shape given to said blades, which are given a very high speedof movement. This shape is such that the whole of the liquid supplied bythe jet is finely atomized, no secondary condition being present whichmight prevent the perfect sheering of the jet or jets into very smalldrops and the complete atomization by shock of each separate drop.

To obtain this result it is necessary that the blades fulfil thefollowing conditions (a) that they present to the jet an edge which cutsthrough the jet without scattering or throwing back any fraction thereofoutside the zone of encounter.

(b) that their surfaces of encounter that is to say their front faces inthe direction of forward movement, are combined with their cutting edgesin such a way that the total amount of gas swept by the passage of theblades flows in the direction of penetration of the liquid, which may beeffected for example in the manner which will be described by giving tosaid surfaces of impact a suitable inclination with respect to thecutting edges.

The annexed drawing diagrammatically illustrates an example ofconstruction of the invention. 11 indicates a part of a drum or wheelseen in side view on which are shown two of the blades b, b mounted onthe periphery of the drum. At is shown the jet of liquid, water forexample to be incorporated with the flow of the ambient gas, air forexample.

The drum turns in the direction indicated by the arrow I, and the liquidto be incorporated flows in the direction indicated by the arrow 2. 5

The jet of liquid is cut by the edge d of each blade, the drop which isdetached by the cutting action is struck by the face e of the said bladeand under the shock of this impact this drop is disintegrated and finelyatomized, and escapes intimately mixed with the gas stream.

The direction of the jet of liquid with respect to the blade drum may bevariable. There can be several jets instead of a single one.

The number of drums utilized in an apparatus may also be variableaccording to the number of liquids to be atomized. Also on the same drumand on the same side as the cutting edges jets of different liquidssucceeding one another in predetermined order can be arranged. 0

What I claim as my invention and desire to secure by Letters Patent ofthe United States is:-

1. Apparatus for the incorporation of a liquid in a gas comprising incombination, a rotary member, a series of blades having sharp cuttingedges and considerably and uniformly curved working surfaces mounted onsaid rotary member with said working surfaces extending substantiallyradially relative to the periphery of said rotary member, and a pipeadapted to feed liquid in a direction substantially normal to thedirection of movement of said blades on to said sharp cutting edgesduring the rotation of said rotary member.

2. An apparatus for the incorporation of a liquid in a gas, comprising arotary member, a plurality of blades mounted on the periphery of saidmember and extending in a radial direction, the leading edge of eachblade being in the form of a sharp cutting edge, means for directing astream of liquid against said blades in a direction substantiallyparallel to the axis of rotation of said rotary member, and each bladehaving a curved working surface extending rearwardly and laterally awayfrom said cutting edge to impact and disperse the portion of the streamof liquid severed by the cutting edge into the atmosphere surroundingthe blade.

PIERRE GEORGES VICARD.

